package com.yizn.learn.concurrent;

import java.util.concurrent.ConcurrentLinkedQueue;

/**
 * 测试
 *
 * @author yisl
 * @create 2020-10-13 11:13
 */
public class ConcurrentLinkedListTest {

    public static void main(String[] args) {
        String aa = null;
        String a1 = "auth" + aa;
        System.out.println(a1);
    }
}
